A summary of how scientific understanding of the effect of permafrost thawing on the climate has grown (Mongabay). This excellent article tells how thinking on this subject has changed in recent years as new evidence pours in. It includes comments from scientists involved in recent studies. The growth rate of carbon being released to the atmosphere has been underestimated, and now it has the potential to shift gears and rise even more sharply from here on.
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An update on the growing threat posed by locust swarms, and new information about the important role of climate change (Inside Climate News, by Bob Berwyn). “Locust outbreaks could be driven by changes in plant nutrients caused by extreme weather, like more frequent soggy tropical storms, which make plants grow faster but dilute elements like nitrogen…..Locusts have a weird physiology—they like low nitrogen plants…..recent research shows that human-driven warming may be intensifying a regional Indian Ocean pattern of warming and cooling that could exacerbate extremes like tropical storms, heavy rains and heat waves—all factors that can affect locust populations…..Scientists warn they could spread across hundreds of thousands more square miles from Ethiopia and Saudi Arabia to Sudan, and across the Persian Gulf and Arabian Sea into Iran, Pakistan and India. Such a spread would threaten the food supplies of 20 million people.“
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Three different ways that changes in vegetation cause changes in regional air temperature (Climate News Network). Tim Radford wrote this interesting summary comparing the findings of three widely separated studies. One key point is that changing vegetation is by itself capable of significantly affecting temperatures, but the underlying circumstances are also important.
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What are the chances that hydrogen will replace natural gas for heating homes? (The Guardian). There is a viable prospect of this happening, and much enthusiasm, but also considerable skepticism such that the likelihood is far from clear. Potential competition from heat pumps, also attractive, is one consideration that is looked at. This article offers a good review covering all sides of the possible outcome to a much-needed changeover.
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A handy widget is available that makes many kinds of helpful climate information readily available, and always up to date (2 Degrees Institute). There is access at this link just below the top image. You will need to spend some time getting familiar with the icons and the nifty way everything works, all of which will leave you amazed.
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Why South Korea is controlling the coronavirus so much better than any other country (Bulletin of the Atomic Scientists). This is off the subject of climate, but I think everyone will be interested just the same.
Carl